DESCRIPTION
The fuel trim is related to the feedback compensation value, not to the basic injection duration. The fuel trim consists of both the short-term and long-term fuel trims.
The short-term fuel trim is fuel compensation that is used to constantly maintain the air fuel ratio at stoichiometric levels. The signal from the air fuel ratio sensor (sensor 1) indicates whether the air fuel ratio is rich or lean compared to the stoichiometric ratio. This triggers a reduction in the fuel injection volume if the air fuel ratio is rich and an increase in the fuel injection volume if lean.
Factors such as individual engine differences, wear over time and changes in operating environment cause short-term fuel trim to vary from the central value. The long-term fuel trim, which controls overall fuel compensation, compensates for long-term deviations in the fuel trim from the central value caused by the short-term fuel trim compensation.
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
MIL | Note |
---|---|---|---|---|---|
P017100 | System Too Lean Bank 1 |
With a warm engine and stable air fuel ratio feedback, the fuel trim is considerably in error to the lean side (2 trip detection logic). |
| Comes on |
|
P017200 |
System Too Rich Bank 1 |
With a warm engine and stable air fuel ratio feedback, the fuel trim is considerably in error to the rich side (2 trip detection logic). |
| Comes on |
|
P117000 |
Fuel Performance/Port Injector |
Although a DTC is stored for a rich or lean condition, the amount of fuel trim during direct injection is normal (1 trip detection logic) |
| Does not come on |
|
P117B00 |
Fuel Performance/Direct Injector |
Although a DTC is stored for a rich or lean condition, the amount of fuel trim during port injection is normal (1 trip detection logic) |
| Does not come on |
|
HINT:
MONITOR DESCRIPTION
Under closed loop fuel control, fuel injection volumes that deviate from those estimated by the ECM cause changes in the long-term fuel trim compensation value. The long-term fuel trim is adjusted when there are persistent deviations in the short-term fuel trim values. Deviations from the fuel injection volumes estimated by the ECM also affect the average fuel trim learned value, which is a combination of the average short-term fuel trim (fuel feedback compensation value) and the average long-term fuel trim (learned value of the air fuel ratio). If the average fuel trim learned value exceeds the malfunction thresholds, the ECM interprets this as a malfunction of the fuel system and stores a DTC.
Example:
The average fuel trim learned value is +48% or higher, or -35% or less, the ECM interprets this as a fuel system malfunction.
MONITOR STRATEGY
Related DTCs | P0171: Fuel trim lean P0172: Fuel trim rich P1170: Fuel trim (port injection fail) P117B: Fuel trim (direct injection fail) |
Required Sensors/Components (Main) | Fuel system |
Required Sensors/Components (Related) |
Air fuel ratio sensor (sensor 1) Mass air flow meter sub-assembly Crankshaft position sensor |
Frequency of Operation | Continuous |
Duration | Within 10 seconds |
MIL Operation | 2 driving cycles: P0171 and P0172 Immediate: P1170 and P117B |
Sequence of Operation | None |
TYPICAL ENABLING CONDITIONS
Monitor runs whenever the following DTCs are not stored |
P0010, P1360, P1362, P1364, P1366, P2614 (Motor drive VVT system control module) P0011 (VVT system - advance) P0012 (VVT system - retard) P0013 (Exhaust VVT oil control solenoid) P0014 (Exhaust VVT system - advance) P0015 (Exhaust VVT system - retard) P0016 (VVT system - misalignment) P0017 (Exhaust VVT system - misalignment) P0031, P0032, P101D (Air fuel ratio sensor (sensor 1) heater) P0101, P0102, P0103 (Mass air flow meter) P0107, P0108 (Manifold absolute pressure) P0117, P0118 (Engine coolant temperature sensor) P0121, P0122, P0123, P0222, P0223, P2135 (Throttle position sensor) P0125 (Insufficient coolant temperature for closed loop fuel control) P0191, P0192, P0193 (Fuel pressure sensor (for high pressure side)) P0201, P0202, P0203, P0204, P062D, P21CF, P21D0, P21D1, P21D2 (Fuel injector) P0335, P0337, P0338 (Crankshaft position sensor) P0340, P0342, P0343 (Camshaft position sensor) P0365, P0367, P0368 (Exhaust camshaft position sensor) P0401 (EGR system) P107B, P107C, P107D (Fuel pressure sensor (for low pressure side)) P11EA, P11EC, P11ED, P11EE, P11EF, P219A, P219C, P219D, P219E, P219F (Air-fuel ratio imbalance) |
Fuel system status | Closed loop |
Auxiliary battery voltage | 11 V or higher |
Either of the following conditions is met |
1 or 2 |
1. Engine speed |
Less than 1100 rpm |
2. Engine load |
10% or higher |
Catalyst monitor |
Not executed |
TYPICAL MALFUNCTION THRESHOLDS
P0171 and P0172: Fuel-Trim Lean/Rich
EVAP purge-cut | Executing |
Either of the following conditions is met |
1 or 2 |
1. Average between short-term fuel trim and long-term fuel trim |
35% or higher (varies with engine coolant temperature) |
2. Average between short-term fuel trim and long-term fuel trim |
-35% or less (varies with engine coolant temperature) |
DTCs of fuel system have already been set | - |
EVAP purge-cut | Executing |
Direct injection | 100% |
Both of the following conditions are met |
1 and 2 |
1. Average between short-term fuel trim and long-term fuel trim |
Less than 35% (varies with engine coolant temperature) |
2. Average between short-term fuel trim and long-term fuel trim |
Higher than -35% (varies with engine coolant temperature) |
DTCs of fuel system have already been set | - |
EVAP purge-cut | Executing |
Port injection | 100% |
Both of the following conditions are met |
1 and 2 |
1. Average between short-term fuel trim and long-term fuel trim |
Less than 35% (varies with engine coolant temperature) |
2. Average between short-term fuel trim and long-term fuel trim |
Higher than -35% (varies with engine coolant temperature) |
CONFIRMATION DRIVING PATTERN
HINT:
Click here
Click here
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
If the engine stops, further depress the accelerator pedal to restart the engine.
HINT:
If a pending DTC is output, the system is malfunctioning.
WIRING DIAGRAM
Click here
Click here
CAUTION / NOTICE / HINT
NOTICE:
Click here
(Select Powertrain in Health Check and then check the time stamp data.)
Click here
HINT:
PROCEDURE
1. | CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P017100, P017200, P117000 AND/OR P117B00) |
(a) Read the DTCs.
Powertrain > Engine > Trouble Codes
Result | Proceed to |
---|---|
DTC P017100, P017200, P117000 and/or P117B00 are output |
A |
DTC P017100, P017200, P117000 and/or P117B00 and other DTCs are output |
B |
HINT:
If any DTCs other than P017100, P017200, P117000 and/or P117B00 are output, troubleshoot those DTCs first.
B | GO TO DTC CHART |
|
2. |
PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION MODE) |
(a) Put the engine in Inspection Mode (Maintenance Mode).
Powertrain > Hybrid Control > Utility
Tester Display |
---|
Inspection Mode |
(b) Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off.
(c) Enter the following menus.
Powertrain > Engine > Active Test
Active Test Display |
---|
Control the Injection Mode |
Data List Display |
---|
Coolant Temperature |
Injection Mode |
Short FT B1S1 |
Long FT B1S1 |
(d) According to the display on the GTS, read the Data List with the Active Test "Control the Injection Mode" set to Port.
OK:
GTS Display | Specified Condition |
---|---|
Total of Short FT B1S1 and Long FT B1S1 |
Between -20 and 20% |
(e) According to the display on the GTS, read the Data List with the Active Test "Control the Injection Mode" set to Direct.
OK:
GTS Display | Specified Condition |
---|---|
Total of Short FT B1S1 and Long FT B1S1 |
Between -20 and 20% |
Item | Proceed to | |
---|---|---|
Port | Direct | |
OK | OK |
A |
OK |
NG | B |
NG | OK |
C |
NG |
NG | D |
B | GO TO STEP 4 |
C | GO TO STEP 11 |
D | GO TO STEP 12 |
|
3. |
CHECK IF VEHICLE HAS RUN OUT OF FUEL IN PAST |
(a) Has the vehicle run out of fuel in the past?
YES | DTC CAUSED BY RUNNING OUT OF FUEL |
NO | CHECK FOR INTERMITTENT PROBLEMS |
4. |
READ VALUE USING GTS (FUEL PRESSURE (HIGH)) |
(a) Put the engine in Inspection Mode (Maintenance Mode).
Powertrain > Hybrid Control > Utility
Tester Display |
---|
Inspection Mode |
(b) Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off.
(c) Enter the following menus.
Powertrain > Engine > Data List
Tester Display |
---|
Engine Speed |
Coolant Temperature |
Fuel Pressure (High) |
Injection Mode |
(d) According to the display on the GTS, read the Data List.
HINT:
During charge control, the engine speed is set at idle. Therefore, the engine speed will not increase when the accelerator pedal is depressed. In this case, read the Data List after charge control has completed.
Standard:
GTS Display | Condition |
Specified Condition |
---|---|---|
Fuel Pressure (High) |
| 3000 to 25000 kPag |
NG | GO TO STEP 7 |
|
5. |
PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION MODE (DIRECT)) |
(a) Put the engine in Inspection Mode (Maintenance Mode).
Powertrain > Hybrid Control > Utility
Tester Display |
---|
Inspection Mode |
(b) Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off.
(c) Enter the following menus.
Powertrain > Engine > Active Test
Active Test Display |
---|
Control the Injection Mode |
Data List Display |
---|
Coolant Temperature |
High Pressure Fuel Pump Duty Ratio (D4) |
Injection Mode |
Short FT B1S1 |
Long FT B1S1 |
(d) According to the display on the GTS, read the Data List with the Active Test "Control the Injection Mode" set to Direct.
HINT:
The A/C switch and all accessory switches should be off, and the shift lever should be in the P position, and the engine should be fully warmed up.
Item | Proceed to | ||
---|---|---|---|
Injection Mode | High Pressure Fuel Pump Duty Ratio (D4) |
Total of Short FT B1S1 and Long FT B1S1 | |
Direct | 10% to 50% |
- | A |
50% or higher | -20% or less |
B | |
10% or less |
+20% or higher | ||
50% or higher | +20% or higher |
C | |
10% or less |
-20% or less | D |
HINT:
Perform "Inspection After Repair" after replacing the fuel pressure sensor (for high pressure side).
Click here
B | REPLACE FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE) |
C | GO TO STEP 8 |
D | REPLACE ECM |
|
6. |
PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION MODE (DIRECT)) |
(a) Put the engine in Inspection Mode (Maintenance Mode).
Powertrain > Hybrid Control > Utility
Tester Display |
---|
Inspection Mode |
(b) Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off.
(c) Enter the following menus.
Powertrain > Engine > Active Test
Active Test Display |
---|
Control the Injection Mode |
Data List Display |
---|
Coolant Temperature |
High Pressure Fuel Pump Duty Ratio (D4) |
Injection Mode |
Short FT B1S1 |
Long FT B1S1 |
(d) According to the display on the GTS, read the Data List with the Active Test "Control the Injection Mode" set to Direct.
HINT:
The A/C switch and all accessory switches should be off, and the shift lever should be in the P position, and the engine should be fully warmed up.
Item | Proceed to | ||
---|---|---|---|
Injection Mode | High Pressure Fuel Pump Duty Ratio (D4) |
Total of Short FT B1S1 and Long FT B1S1 | |
Direct | 10 to 50% |
-25% or less |
A |
10 to 50% |
+25% or higher | ||
10 to 50% | -25 to +25% |
B |
HINT:
Perform "Inspection After Repair" after replacing the direct fuel injector assembly.
Click here
A | REPLACE DIRECT FUEL INJECTOR ASSEMBLY |
B | CHECK FOR INTERMITTENT PROBLEMS |
7. |
CHECK MISFIRE COUNT OF DIRECT INJECTION |
(a) Put the engine in Inspection Mode (Maintenance Mode).
Powertrain > Hybrid Control > Utility
Tester Display |
---|
Inspection Mode |
(b) Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off.
(c) Enter the following menus.
Powertrain > Engine > Active Test
Active Test Display |
---|
Control the Injection Mode |
Data List Display |
---|
Coolant Temperature |
Injection Mode |
Misfire Count Cylinder #1 |
Misfire Count Cylinder #2 |
Misfire Count Cylinder #3 |
Misfire Count Cylinder #4 |
(d) According to the display on the GTS, read the Data List with the Active Test "Control the Injection Mode" set to Direct.
HINT:
The A/C switch and all accessory switches should be off, and the shift lever should be in the P position, and the engine should be fully warmed up.
Injection Mode | Misfire Count |
Proceed to |
---|---|---|
Direct | No misfire counts, or misfire counts occur randomly in all cylinders |
A |
Misfire counts occur in particular cylinder |
B |
HINT:
Perform "Inspection After Repair" after replacing the direct fuel injector assembly.
Click here
B | REPLACE DIRECT FUEL INJECTOR ASSEMBLY |
|
8. |
REPLACE FUEL PUMP ASSEMBLY (FOR HIGH PRESSURE SIDE) |
Click here
HINT:
Perform "Inspection After Repair" after replacing the fuel pump assembly (for high pressure side).
Click here
|
9. |
CLEAR DTC |
(a) Clear the DTCs.
Powertrain > Engine > Clear DTCs(b) Turn the ignition switch off and wait for at least 30 seconds.
|
10. |
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED |
(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(b) Read the DTCs.
Powertrain > Engine > Trouble Codes
Result | Proceed to |
---|---|
DTCs are not output | A |
DTC P017100, P017200, P117000 and/or P117B00 are output |
B |
A | END |
B | REPLACE ECM |
11. |
INSPECT PORT FUEL INJECTOR ASSEMBLY |
(a) Check the injection volume (whether fuel volume is high or low, and whether injection pattern is poor).
Click here
HINT:
Perform "Inspection After Repair" after replacing the port fuel injector assembly.
Click here
OK | REPLACE ECM |
NG | REPLACE PORT FUEL INJECTOR ASSEMBLY |
12. |
CHECK PCV VALVE AND HOSE CONNECTIONS |
(a) Check the PCV hose connections.
(b) Check the PCV valve.
Click here
OK:
PCV hose and PCV valve are connected correctly and are not damaged.
NG | REPAIR OR REPLACE PCV VALVE OR HOSE |
|
13. |
CHECK INTAKE SYSTEM |
(a) Check the intake system for vacuum leaks.
Click here
OK:
No leaks in intake system.
HINT:
Perform "Inspection After Repair" after repairing or replacing the intake system.
Click here
NG | REPAIR OR REPLACE INTAKE SYSTEM |
|
14. |
PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION VOLUME FOR A/F SENSOR) |
(a) Put the engine in Inspection Mode (Maintenance Mode).
Powertrain > Hybrid Control > Utility
Tester Display |
---|
Inspection Mode |
(b) Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.
(c) Idle the engine for 5 minutes or more with the shift lever in P.
(d) Enter the following menus.
Powertrain > Engine > Active Test
Active Test Display |
---|
Control the Injection Volume for A/F Sensor |
Data List Display |
---|
Coolant Temperature |
A/F (O2) Sensor Current B1S1 |
A/F (O2) Sensor Current B1S2 |
(e) Perform the Control the Injection Volume for A/F Sensor operation with the engine idling.
(f) Monitor the output values of the air fuel ratio sensor (sensor 1) and air fuel ratio sensor (sensor 2) (A/F (O2) Sensor Current B1S1 and A/F (O2) Sensor Current B1S2) displayed on the GTS.
HINT:
Standard:
GTS Display (Sensor) | Injection Volume |
Status | Current |
---|---|---|---|
A/F (O2) Sensor Current B1S1 (Air fuel ratio (sensor 1)) |
12.5% | Rich |
Below -0.075 mA |
-12.5% | Lean |
More than 0.037 mA | |
A/F (O2) Sensor Current B1S2 (Air fuel ratio (sensor 2)) |
12.5% | Rich |
Below -0.86 mA |
-12.5% | Lean |
More than 0.33 mA |
Status A/F (O2) Sensor Current B1S1 |
Status A/F (O2) Sensor Current B1S2 |
Air Fuel Ratio Condition and Air Fuel Ratio Sensor Condition |
Suspected Trouble Area | Proceed to |
---|---|---|---|---|
Lean/Rich | Lean/Rich |
Normal | - |
A |
Lean |
Lean | Actual air fuel ratio lean |
| |
Rich |
Rich | Actual air fuel ratio rich |
| |
Lean |
Lean/Rich | Air fuel ratio sensor (sensor 1) malfunction |
| B |
Rich | Lean/Rich |
Air fuel ratio sensor (sensor 1) malfunction |
|
HINT:
Refer to "Data List / Active Test" [A/F (O2) Sensor Current B1S1 and A/F (O2) Sensor Current B1S2].
Click here
B | GO TO STEP 24 |
|
15. |
READ VALUE USING GTS (COOLANT TEMPERATURE) |
(a) Enter the following menus.
Powertrain > Engine > Data List
Tester Display |
---|
Coolant Temperature |
(b) Read the Data List twice, when the engine is both cold and warmed up.
Standard:
GTS Display | Condition |
Specified Condition |
---|---|---|
Coolant Temperature | Cold engine |
Same as ambient air temperature |
Warm engine | Between 75 and 100°C (167 and 212°F) |
HINT:
Perform "Inspection After Repair" after replacing the engine coolant temperature sensor.
Click here
NG | REPLACE ENGINE COOLANT TEMPERATURE SENSOR |
|
16. |
PERFORM ACTIVE TEST USING GTS (CONTROL THE EGR STEP POSITION) |
(a) Put the engine in Inspection Mode (Maintenance Mode).
Powertrain > Hybrid Control > Utility
Tester Display |
---|
Inspection Mode |
(b) Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.
HINT:
The A/C switch and all accessories should be off.
(c) Enter the following menus.
Powertrain > Engine > Active Test
Active Test Display |
---|
Control the EGR Step Position |
Data List Display |
---|
Intake Manifold Absolute Pressure |
Coolant Temperature |
Engine Independent |
(d) Confirm that the value of Data List item Engine Independent is "Operate" then check the value of Intake Manifold Absolute Pressure while performing the Active Test.
NOTICE:
OK:
The value of Intake Manifold Absolute Pressure changes in response to the EGR step position when the value of Engine Independent is "Operate".
Standard:
- | Control the EGR Step Position (Active Test) | |
---|---|---|
0 Steps | 0 to 30 Steps | |
Intake Manifold Absolute Pressure (Data List) |
(EGR valve is fully closed) |
Intake Manifold Absolute Pressure value is at least +10 kPa (1.45 psi) higher than when EGR valve is fully closed |
HINT:
OK | GO TO STEP 18 |
|
17. |
INSPECT EGR VALVE ASSEMBLY |
(a) Remove the EGR valve assembly.
Click here
(b) Check if the EGR valve is stuck open.
OK:
EGR valve is tightly closed.
HINT:
Perform "Inspection After Repair" after replacing the EGR valve assembly.
Click here
NG | REPLACE EGR VALVE ASSEMBLY |
|
18. |
READ VALUE USING GTS (MASS AIR FLOW SENSOR) |
(a) Put the engine in Inspection Mode (Maintenance Mode).
Powertrain > Hybrid Control > Utility
Tester Display |
---|
Inspection Mode |
(b) Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off.
(c) Enter the following menus.
Powertrain > Engine > Data List
Tester Display |
---|
Engine Speed |
Mass Air Flow Sensor |
Coolant Temperature |
(d) Read Mass Air Flow Sensor while maintaining an engine speed of 2500 rpm.
HINT:
During charge control, the engine speed is set at idle. Therefore, the engine speed will not increase when the accelerator pedal is depressed. In this case, read the Data List after charge control has completed.
Standard:
GTS Display | Condition |
Specified Condition |
---|---|---|
Mass Air Flow Sensor |
| Between 5.5 and 18.6 gm/sec |
NG | GO TO STEP 31 |
|
19. |
CHECK FUEL PRESSURE (FOR LOW PRESSURE SIDE) |
Click here
NG | GO TO STEP 23 |
|
20. |
CHECK FOR EXHAUST GAS LEAK |
(a) Check for exhaust gas leaks.
OK:
No gas leaks.
HINT:
Perform "Inspection After Repair" after repairing or replacing the exhaust system.
Click here
NG | REPAIR OR REPLACE EXHAUST SYSTEM |
|
21. |
INSPECT SPARK PLUG |
Click here
HINT:
Perform "Inspection After Repair" after replacing the spark plug.
Click here
NG | REPLACE SPARK PLUG |
|
22. |
CHECK FOR SPARK (SPARK TEST) |
(a) Perform a spark test.
Click here
HINT:
Click here
NEXT | GO TO STEP 31 |
23. |
CHECK FUEL LINE |
(a) Check the fuel lines for leaks or blockage.
HINT:
Perform "Inspection After Repair" after replacing the fuel pump (for low pressure side).
Click here
OK | GO TO FUEL PUMP CONTROL CIRCUIT |
NG | REPAIR OR REPLACE FUEL SYSTEM |
24. |
INSPECT AIR FUEL RATIO SENSOR (SENSOR 1) (HEATER RESISTANCE) |
Click here
HINT:
Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 1).
Click here
NG | REPLACE AIR FUEL RATIO SENSOR (SENSOR 1) |
|
25. |
CHECK TERMINAL VOLTAGE (POWER SOURCE OF AIR FUEL RATIO SENSOR (SENSOR 1)) |
*a | Front view of wire harness connector (to Air Fuel Ratio Sensor (Sensor 1)) |
(a) Disconnect the air fuel ratio sensor (sensor 1) connector.
(b) Turn the ignition switch to ON.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition |
Specified Condition |
---|---|---|
C56-2 (+B) - Body ground |
Ignition switch ON | 11 to 14 V |
NG | GO TO STEP 34 |
|
26. |
CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR (SENSOR 1) - ECM) |
(a) Disconnect the air fuel ratio sensor (sensor 1) connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition |
Specified Condition |
---|---|---|
C56-1 (HA1A) - C139-9 (HA1A) |
Always | Below 1 Ω |
C56-3 (A1A+) - C139-95 (A1A+) |
Always | Below 1 Ω |
C56-4 (A1A-) - C139-94 (A1A-) |
Always | Below 1 Ω |
C56-1 (HA1A) or C139-9 (HA1A) - Body ground and other terminals |
Always | 10 kΩ or higher |
C56-3 (A1A+) or C139-95 (A1A+) - Body ground and other terminals |
Always | 10 kΩ or higher |
C56-4 (A1A-) or C139-94 (A1A-) - Body ground and other terminals |
Always | 10 kΩ or higher |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
27. |
REPLACE AIR FUEL RATIO SENSOR (SENSOR 1) |
Click here
HINT:
Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 1).
Click here
|
28. |
CLEAR DTC |
(a) Clear the DTCs.
Powertrain > Engine > Clear DTCs(b) Turn the ignition switch off and wait for at least 30 seconds.
|
29. |
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED |
(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(b) Read the DTCs.
Powertrain > Engine > Trouble Codes
Result | Proceed to |
---|---|
DTCs are not output | A |
DTC P017100, P017200, P117000 and/or P117B00 are output |
B |
A | END |
|
30. |
READ VALUE USING GTS (MASS AIR FLOW SENSOR) |
(a) Put the engine in Inspection Mode (Maintenance Mode).
Powertrain > Hybrid Control > Utility
Tester Display |
---|
Inspection Mode |
(b) Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off.
(c) Enter the following menus.
Powertrain > Engine > Data List
Tester Display |
---|
Engine Speed |
Mass Air Flow Sensor |
Coolant Temperature |
(d) Read Mass Air Flow Sensor while maintaining an engine speed of 2500 rpm.
HINT:
During charge control, the engine speed is set at idle. Therefore, the engine speed will not increase when the accelerator pedal is depressed. In this case, read the Data List after charge control has completed.
Standard:
GTS Display | Condition |
Specified Condition |
---|---|---|
Mass Air Flow Sensor |
Engine warmed up Shift position: P A/C: Off Engine Speed: 2500 rpm |
Between 5.5 and 18.6 gm/sec |
|
31. |
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY CONNECTOR CONNECTION) |
(a) Check the connection and terminal contact pressure of connectors and wire harnesses between the mass air flow meter sub-assembly and ECM.
Click here
HINT:
Repair any problems.
|
32. |
CLEAR DTC |
(a) Clear the DTCs.
Powertrain > Engine > Clear DTCs(b) Turn the ignition switch off and wait for at least 30 seconds.
|
33. |
CHECK WHETHER DTC OUTPUT RECURS (DTC P017100, P017200, P117000 OR P117B00) |
(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(b) Read the DTCs.
Powertrain > Engine > Trouble Codes
Result | Proceed to |
---|---|
DTCs are not output | A |
DTC P017100, P017200, P117000 and/or P117B00 are output |
B |
A | END |
B | GO TO STEP 38 |
34. |
INSPECT EFI-MAIN NO. 2 RELAY |
(a) Remove the EFI-MAIN NO. 2 relay from the No. 1 engine room relay block.
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(c) Install the EFI-MAIN NO. 2 relay.
NG | REPLACE EFI-MAIN NO. 2 RELAY |
|
35. |
CHECK TERMINAL VOLTAGE (POWER SOURCE OF EFI-MAIN NO. 2 RELAY) |
(a) Remove the EFI-MAIN NO. 2 relay from the No. 1 engine room relay block.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition |
Specified Condition |
---|---|---|
3 (EFI-MAIN NO. 2 relay) - Body ground |
Always | 11 to 14 V |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR (AUXILIARY BATTERY - EFI-MAIN NO. 2 RELAY) |
|
36. |
CHECK HARNESS AND CONNECTOR (EFI-MAIN NO. 2 RELAY - BODY GROUND) |
(a) Remove the EFI-MAIN NO. 2 relay from the No. 1 engine room relay block.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition |
Specified Condition |
---|---|---|
2 (EFI-MAIN NO. 2 relay) - Body ground |
Always | Below 1 Ω |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
37. |
CHECK HARNESS AND CONNECTOR (EFI-MAIN NO. 2 RELAY - AIR FUEL RATIO SENSOR (SENSOR 1)) |
(a) Remove the EFI-MAIN NO. 2 relay from the No. 1 engine room relay block.
(b) Disconnect the air fuel ratio sensor (sensor 1) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition |
Specified Condition |
---|---|---|
5 (EFI-MAIN NO. 2 relay) - C56-2 (+B) |
Always | Below 1 Ω |
5 (EFI-MAIN NO. 2 relay) or C56-2 (+B) - Body ground and other terminals |
Always | 10 kΩ or higher |
OK | REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI-MAIN NO. 1 RELAY - EFI-MAIN NO. 2 RELAY) |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
38. |
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) |
(a) Disconnect the mass air flow meter sub-assembly connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition |
Specified Condition |
---|---|---|
C26-4 (VCC) - C139-78 (VCVG) |
Always | Below 1 Ω |
C26-3 (FG) - C139-101 (VG) |
Always | Below 1 Ω |
C26-2 (E2G) - C139-79 (E2G) |
Always | Below 1 Ω |
C26-4 (VCC) or C139-78 (VCVG) - Body ground and other terminals |
Always | 10 kΩ or higher |
C26-3 (FG) or C139-101 (VG) - Body ground and other terminals |
Always | 10 kΩ or higher |
C26-2 (E2G) or C139-79 (E2G) - Body ground and other terminals |
Always | 10 kΩ or higher |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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39. |
INSPECT MASS AIR FLOW METER SUB-ASSEMBLY |
Click here
|
40. |
CLEAR DTC |
(a) Clear the DTCs.
Powertrain > Engine > Clear DTCs(b) Turn the ignition switch off and wait for at least 30 seconds.
|
41. |
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED |
(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(b) Read the DTCs.
Powertrain > Engine > Trouble Codes
Result | Proceed to |
---|---|
DTCs are not output | A |
DTC P017100, P017200, P117000 and/or P117B00 are output |
B |
A | END |
B | REPLACE ECM |